Question

Vă rog ajutați-mă! Este urgent!

Answer 1

x=suma economisita
0,(4)=4/9
0,4=4/10=2/5
0,(3)=3/9=1/3
0,3=3/10

4/9×2/5×x=8x/45= pret excursie
x-8x/45=37x/45=rest
37x/45×1/3×3/10=37x/450=pret stilou
37x/45-37x/450=37x/450+296
37x/45-37x/450-37x/450=296
37x/45-74x/450=296
370x-74x=133200
296x=133200
x=450 lei suma economisita

pret excursie=8x/45=8×450/45=80 lei
pret stilou =37x/450=37×450/450=37 lei